find the solution to the following system using substitution or elimination:
y = 3x + 2
y = -2x - 8
A. (-2, -4).
B. (-3/5, -34/5).
C. (-6/5, -8/5).
D. (1, 6)

Answers

Answer 1

Answer: A

Explanation:

Just use substitution because it's more efficient. Plug -2x-8 into y to make -2x-8=3x+2. Add 8 to both sides to get -2x=3x+10. Subtract 3x to both sides to get -5x=10. Divide -5 to both sides to get x=-2. Now, plug in x=-2 to one of the equations, let's use y=3x+2. The equation would be y=3(-2)+2. Multiply 3 and -2 to get -6. Add -6 to 2 and you'll result with y=-4.

Answer 2
It should be A (-2,-4). When using elimination.

Related Questions

What kind of triangle is this?

Answers

Right angle
Te reason being is that it has a 90° corner.

Hoped this helped

Answer:   acute

Step-by-step explanation: its not right cuz there a 90 degree angle and it isnt obtuse

100 POINTS!!!!
how do you fall asleep in 1 second?

Answers

Answer:

S*i*I*E

Sorry don't know.

But you lying, its only 50 points!!

Answer:

Impossible

Step-by-step explanation:

think logically, your going to need a longer time scale

lets say 1 minute

let your lips part slightly.

Then close your lips and inhale silently for 4 seconds.

Hold your breath for 7 seconds. You can also count till 7 in your head.

Exhale with a whoosh sound for 8 seconds.

Avoid being too alert.

Keep doing this process mindlessly.

do this activity at least 4-5 times.

What's the nicest thing someone has said or done for you? Feel free to comment or leave an answer :)

Answers

Answer: I actually got a good one

My best friend told me that I was the best person ever and that she hoped nothing would ever separate us. She always is there when I need her, and she supported me when I came out! She is the greatest Friend I could ever ask for!

"I was walking home one day last winter, it was super cold out and some lady I've never seen before stopped to pick me up. She was really nice and drove way out of her way to drop me off at my house. She gave me a winter hat and a piece of chicken (she was on her way home from KFC) I said 'thank you' and she told me to pay it forward." I never got her name though :(

The new Play Station 5 is price at 500$. For Christmas, it is priced at 420$. What is the percent change?

Answers

16% difference!! Hope it helps

Angela uses 2/3 cup of strawberries to make 5/6 of a liter of smoothie. What is the unit rate in cups of strawberries per liter of smoothie?​

Answers

Answer: 5/6÷2/3

5/6×3/2

=5/4

5/4 cups of strawberries makes 1 litre of smoothie

You’re answer would be 5/6➗2/3

describe this number line and the numbers and fractions shown.​

Answers

Answer:

Every real number other than zero is either positive or negative. The non-negative whole numbers are referred to as natural numbers (i.e., 0, 1, 2, 3...), while the positive and negative whole numbers (together with zero) are referred to as integers. (Some definitions of the natural numbers exclude zero.)

Step-by-step explanation:

Answer:

Sample Response: The number line shows -2 through 2, divided into fourths, with zero in the middle. The numbers increase as you move right and decrease as you move left.

                                                                    Plz mark brainlest

Which equation best represents the line?
Oy = 3x + 3
Oy=-x-8
O y = -x + 3
2
x+
Oy = 3x +
2

Answers

Answer:

Y=(1/2)x + 3

Step-by-step explanation:

The equation of the line is y = (1/2)x + 3.

We have,

The equation of a line is written as:

y = mx + c

Where m is the slope and c is the y-intercept.

Now,

From the line,

We have the following coordinates:

(2, 4) and (4, 5)

Now,

Slope.

m = (5 - 4) / (4 - 2) = 1/2

And,

(2, 4) = (x, y)

Substituting.

y = mx + c

4 = (1/2) x 2 + c

4 = 1 + c

c = 4 - 1

c = 3

Now,

y = (1/2)x + 3

Thus,

The equation of the line is y = (1/2)x + 3.

Learn more about equation of a line here:

https://brainly.com/question/23087740

#SPJ7

Find the slope and the y-intercept of the line.
- 9x+3y=-6

Answers

Answer:

slope is 3 and y intercept of -2

Step-by-step explanation:

help!!! ill give brainliest!!

Answers

Answer:

4.123

Step-by-step explanation:

Just have to think what times itself = 17 and I thought well Istill close to 4 and then I just did the work

also PLZ MARK ME BRAINLIEST

Hurry please (ignore this part hdhdjsfjenejfixhebrfisj)

Answers

Answer:

(-3/8) (-5/7) (-1/4) is the answer

Step-by-step explanation:

please mark me as brainliest please

Ayana has $20.95 in quarters and dimes. If she has 103 coins in all, find the number of quarters and dimes. PLEASE HELP AND SHOW WORK! ​

Answers

There are 83 quarters and 2 dimes. This is correct because I know 4 quarters make a dollar I multiplied 4 by 20 giving me 80. After that I know that I can make 95 cents with 3 quarters and 2 dimes making my final answer being, 83 quarters and 2 dimes= $20.95

HELP DUE TOMORROW ASAP BAINLYEST

Answers

Answer:

B is the correct answer

Step-by-step explanation:

3/12 = 1/4 = 0.25

Answer:

Step-by-step explanation:

(B)

PLZ HAAAALP
One winter day, the temperature was -15°F. Later that day, the temperature rose 12°F to reach the high temperature for the day. If t represents the high temperature, what is t?

Answers

Answer:

-3°F

Step-by-step explanation:

-15 + 12 = -3

Answer:

-3

Step-by-step explanation:

The diagram shows a triangle.
76
P+49
P+13
What is the value of p?

Answers

What’s the 76 for is it part of that triangle also is p the missing angle ? I can help you but give me more details

Answer:

40

Step-by-step explanation:

76p+49p+13

=(76-49)p+13      [   plus (+) plus = minus(-)  ]

=27p+13

=40p or p=40 ans

13
Complete the table of equivalent ratios.
9
5
10
20
25

Answers

Answer:

Step-by-step explanation:

3 6 9 12 15

5 10 15 20 25

Tennis balls with a diameter of 2.5 inches are sold in cans of three. The can is a cylinder. What is the volume of the space NOT occupied by the tennis balls? (Assume the tennis balls touch the can on all sides, top and bottom.) Round to the nearest tenth and show all steps and reasoning.

Answers

Answer:

The space NOT occupied by the tennis balls is 12.26 cube inches.

Step-by-step explanation:

The space NOT occupied = volume of cylinder - total volume of spheres

The can is cylinder with volume = [tex]\pi[/tex][tex]r^{2}[/tex]h

where r is the radius and h the height of the cylinder

With the given condition,

r = [tex]\frac{diameter}{2}[/tex] = [tex]\frac{2.5}{2}[/tex]

                 = 1.25 inches

h = 3 x diameter = 3 x 2.5

                     = 7.5 inches

So that,

Volume of the can = [tex]\frac{22}{7}[/tex] x [tex](1.25)^{2}[/tex] x 7.5

                               = 36.830

Volume of can is 36.83 cube inches.

The tennis ball is a sphere with volume = [tex]\frac{4}{3}[/tex][tex]\pi[/tex][tex]r^{3}[/tex]

                                = [tex]\frac{4}{3}[/tex] x [tex]\frac{22}{7}[/tex] x [tex](1.25)^{3}[/tex]

                                = 8.185

Volume of the tennis ball is 8.19 cube inches.

Since they are sold in three's, then;

total volume of the tennis balls = 3 x 8.19

                                     = 24.57

Volume of the tennis balls is 24.57 cube inches.

Thus,

The space NOT occupied = 36.83 - 24.57

                                           = 12.26

The space NOT occupied by the tennis balls is 12.26 cube inches.

The science club is going to the space museum. The club consists of 27 students.

Answers

Answer:

did u forget to complete the question or.....

Please, I need help. ​

Answers

A) y=1/2x+8
B) y=17 hourly pay rate for cashier with 18 years of experience is $17 an hour


URGENT NEED OF HELP PLEASE ILL GIVE BRAINLEST

Answers

Answer:

umm.. I think the answer choices are wrong because the slope is -2.

y = mx + b

y = (slope)x + (y-intercept)

y = -2x + 4

and i have proof!

Step-by-step explanation:

Please I need help on this anyone

Answers

Answer:

98

Step-by-step explanation:

with the rule "corresponding angles are equal" it means that "d" and "f" are equal.

and since "f" is on the other side of 82, on a straight line, you can calculate "f".

82 and "f" would have to add up to 180' since they are on a straight line.

So you do 180 - 81 = f

and get 98.

and since "f = d"

d = 98 degrees

Carlos and Jonathan shared $40 in the ratio 5:3. How much money did Jonathan get? (Draw a tape diagram).
PLEASE HELP MEEEEEEEEEEEEEEEEEEEE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

carlos got 25 and Jonathan got 15.

Step-by-step explanation:

5+3=8 40/8=5

5×5=25. 5×3=15

21 boys and 14 girls. What is the ratio of girls to boys in Ms. Hawthorne's class?

Answers

Answer:

14 to 21

Step-by-step explanation:

reverse of 21 to 14 = 14 to 21

write a paragraph about the activites that you mostly do in holidays​

Answers

Some things i do over the holidays,
Are spending time with my family and friends. During Christmas time i help my family cook a meal a wrap presents, Any other time i would usually just go out of state and/ or spend time with friends. Something i also enjoy doing is going shopping and finding new things.

can someone plz help me

Answers

Answer:

I think B

Step-by-step explanation:

I think

Answer:

The equation has no solution.

Step-by-step explanation:

[tex]2(3x - 8) = 8x - 2x - 8 \\ \\ 2 \times 3x - 2 \times 8 = 6x - 8 \\ \\ 6x - 16 = 6x - 8 \\ \\ 6x - 6x = 16 - 8 \\ \\ 0 = 8 \: (which \: is \: absurd) \\ \\ the \: equation \: has \: no \: solution \\ [/tex]

,,,,,,,,,hi help pls

Answers

Answer: slope is 0
to find the slope , you have to subtract y-es and divide them by x-es.(delta y/ delta x)
so,
(-6,-2) (-7,-2)
slope: -2-(-2)/-7-(-6)
slope:0/ -1
slope: 0
which looks on the graph like this:


Point P is the center of the circle in the figure above. What is the value of x?

Answers

Answer:

x = 80°

Step-by-step explanation:

To find x, we need to create an equation.

Recall that the sum of all the 4 interior angles of a quadrilateral = 360°.

Therefore:

m<B + m<A + m<C + m<P = 360°

m<B = 20° (given)

m<C = 20° (given)

m<A = ½*x = x/2 (inscribed angle theorem)

m<P = (360 - x)°

Plug in the values and solve for x

[tex] 20 + \frac{x}{2} + 20 + (360 - x) = 360 [/tex]

[tex] 20 + \frac{x}{2} + 20 + 360 - x = 360 [/tex]

Collect like terms

[tex] 20 + 20 + 360 + \frac{x}{2} - x = 360 [/tex]

[tex] 400 + \frac{x}{2} - x = 360 [/tex]

Subtract 400 from each side

[tex] 400 + \frac{x}{2} - x - 400 = 360 - 400 [/tex]

[tex] \frac{x}{2} - x = -40 [/tex]

[tex] \frac{x - 2x}{2} = -40 [/tex]

[tex] \frac{-x}{2} = -40 [/tex]

Multiply both sides by 2

[tex] \frac{-x}{2} \times 2 = -40 \times 2 [/tex]

[tex] -x = -80 [/tex]

Divide both sides by -1

[tex] \frac{-x}{-1} = \frac{-80}{-1} [/tex]

[tex] x = 80 [/tex]

if the length o a football is 100 yards and the width is 53.3 yars,what is the area

Answers

Answer:

5330 yards2

Step-by-step explanation:

Answer:

In track meets both 100 yards and 100 meters are used as distances. By how many meters is100 meters longer than 100 yards? 0.0856 m b. 0.856 m c. 1 m d.  8.56 m

Please mark brainiest :)  

Answer : 4 873.752 m2

In 2/3 divided by 4/5 the____ is 2/3 .

Answers

Answer:

Numerator

Step-by-step explanation:

2/3 / 4/5. 2/3 is the numerator of the compound fraction.

Helppppppppppppppppppp me Write this rate as a unit rate. 7/5 miles 2/3 hour

Answers

I’m pretty sure this is it: 2.1 miles in 1 hour


7/5 divided by 2/3 equals 20/10 or 2.1

You are just have one big fraction with 7/5 as the numerator (top) and 2/3 as the denominator (bottom)

Hope this helps :)

What is the reciprocal of 5 1/8

Answers

Answer:

0.19512195122

Step-by-step explanation:

It is 8/41.

5 1/8 = 41/8.
You flip it over and it equals to 8/41
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